TY - JOUR
T1 - Carbon nanotube growth from titanium-cobalt bimetallic particles as a catalyst
AU - Sato, Shintaro
AU - Kawabata, Akio
AU - Kondo, Daiyu
AU - Nihei, Mizuhisa
AU - Awano, Yuji
N1 - Funding Information:
The authors thank Dr. Naoki Yokoyama, General Manager of Nanotechnology Research Center of Fujitsu Laboratories Ltd. and Prof. Sumio Iijima at National Institute of Advanced Industrial Science and Technology for their support and useful suggestions. Discussions with Dr. Mari Ohfuti are also appreciated. This work was supported by the Advanced Nanocarbon Application Project, which was consigned to Japan Fine Ceramics Center (JFCC) by New Energy and Industrial Technology Development Organization (NEDO) of Japan.
PY - 2005/1/24
Y1 - 2005/1/24
N2 - Bimetallic particles of Ti and Co have been used to grow multi-walled carbon nanotubes (MWNTs) to study the effects of Ti on the growth. The particles were generated by laser ablation and size-classified with a differential mobility analyzer. Diameter-controlled MWNTs were grown on a silicon substrate from 5-nm particles by thermal chemical vapor deposition using acetylene at 510 and 610°C. Titanium has been found to enhance the MWNT growth significantly. There is an optimum Ti fraction for the growth, as confirmed by evaluation of the growth probabilities of MWNTs. A possible mechanism of growth enhancement by Ti is discussed.
AB - Bimetallic particles of Ti and Co have been used to grow multi-walled carbon nanotubes (MWNTs) to study the effects of Ti on the growth. The particles were generated by laser ablation and size-classified with a differential mobility analyzer. Diameter-controlled MWNTs were grown on a silicon substrate from 5-nm particles by thermal chemical vapor deposition using acetylene at 510 and 610°C. Titanium has been found to enhance the MWNT growth significantly. There is an optimum Ti fraction for the growth, as confirmed by evaluation of the growth probabilities of MWNTs. A possible mechanism of growth enhancement by Ti is discussed.
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U2 - 10.1016/j.cplett.2004.12.018
DO - 10.1016/j.cplett.2004.12.018
M3 - Article
AN - SCOPUS:11444268193
VL - 402
SP - 149
EP - 154
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 1-3
ER -